Migration Behavior of Tungsten Carbide in the Dissimilar Joints of WC-TiC-Ni/304 Stainless Steel Using Robotic MIG Welding

2018 ◽  
pp. 145-163 ◽  
Author(s):  
Guotao Ying ◽  
Hongying Gong ◽  
Peiquan Xu
Keyword(s):  
Stainless Steel ◽  
Tungsten Carbide ◽  
304 Stainless Steel ◽  
Migration Behavior ◽  
Mig Welding ◽  
Dissimilar Joints

Investigation on regulating inter-granular penetration in CoCrMnFeNi high-entropy alloy and 304 stainless steel dissimilar joints

2021 ◽  
Vol 800 ◽  
pp. 140291
Author(s):  
Ge Wang ◽  
Guangmin Sheng ◽  
Qili Yu ◽  
Jianchun Sun ◽  
Rui Li ◽  
...  
Keyword(s):  
Stainless Steel ◽  
304 Stainless Steel ◽  
High Entropy Alloy ◽  
Dissimilar Joints ◽  
High Entropy

Wear and Corrosion Behavior of nano carbide dispersed AISI304 Stainless Steel by laser surface processing

2021 ◽  
Author(s):  
Amitesh Chakraborty ◽  
Dileep Madapana ◽  
Shree Krishna ◽  
Sisa L Pityana ◽  
D Sen ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Tungsten Carbide ◽  
Continuous Wave ◽  
Steel Substrate ◽  
304 Stainless Steel ◽  
Beam Diameter ◽  
Maximum Enhancement ◽  
Pitting Corrosion Resistance ◽  
Wear And Corrosion ◽  
Scan Speed

Abstract In this study, dispersion of tungsten carbide on AISI 304 stainless steel substrate has been carried out by laser melting of the sand blasted substrate using 5 kW continuous wave (CW) Nd-YAG laser (with the beam diameter of 3 mm) with an output power ranging from 1.5 - 2 kW and scan speed varying from 12 to 16 mm/s and simultaneous feeding of premixed WC+Co in the ratio of 1:4 (with a flow rate of 10 mg/s). The microstructure of the composite zone is dendritic or cellular in morphology and consists of nano-tungsten carbide (both WC and W2C) and M23C6 precipitates. There is an enhancement in hardness from 220 VHN of the as-received substrate to 290 - 400 VHN. The wear resistance is improved significantly with a maximum enhancement observed in the sample processed with an applied power of 2 kW and a scan speed of 12 mm/s. The corrosion rate in a 3.56 wt.% NaCl solution is significantly reduced due to laser processing. However, there is a deterioration of pitting corrosion resistance (in terms of shifting of Epit towards active direction) for all the samples, except for the sample processed with an applied power of 2 kW and a scan speed of 12 mm/s.

Sign in / Sign up

Export Citation Format

Share Document